Assessment of the Phytin Content in the Fruit of Five Species of Juglans when Introduced in Central Russian Upland

Abstract

Abstract The phytin (myo-inositol-1,2,3,4,5,6-hexacystichydrophosphoric acid) content was studied in the endosperm of five species of Juglans grown in the Central Russian Upland conditions: 1) Persian walnut (Juglans regia L.); 2) Manchurian walnut (Juglans mandshurica Maxim); 3) heartnut (Juglans cordiformis Maxim); 4) grey walnut (Juglans cinerea L.); 5) black walnut (Juglans nigra L). The walnut is shown to have the highest phytin content (31.90±0.67 mg/g wet weight) and a low coefficient of variation (Cv=4.23%). Based on the research, we can conclude that walnut is well adapted to the conditions of the Central Russian Upland and is recommended for the creation of fruit plantations by seed.